摘要
高家庄煤矿回风大巷在掘进施工过程中,工作面涌水量突然增大,并且水压和水量均超出正常范围。为了避免回风大巷掘进过程中的突发涌水事故,基于EH4大地电磁法电磁探测成像技术原理,通过在回风大巷掘进迎头对应地表区域合理布置测网,采用EH4对巷道掘进迎头53 457 m^2范围进行勘探,根据勘探结果视电阻率的变化,并结合地质条件综合分析圈定了回风大巷积水区范围和涌水来源。研究结果表明了EH4大地电磁法在积水区勘探中的有效性,进而为制定出合理的探放水方案和探放水技术措施提供可靠依据。
During the excavation construction of the return airway of Gaojiazhuang Coal Mine,the amount of water in the working surface suddenly increased,and the water pressure and water volume exceeded the normal range.In order to avoid water inrush accidents in the excavation process of a coal mine air return roadway,based on the principle of electromagnetic detection imaging technology of EH4 magnetotelluric method and reasonably arranging the measuring network in the surface area corresponding to the heading face of the return air tunnel,EH4 is used to explore the roadway heading area of 53 457 m^2.According to the change of apparent resistivity exploration results,the area of stagnant water and the source of gushing water were delineated combined with the comprehensive analysis of geological conditions.The results show the effectiveness of EH4 magnetotelluric method in water area exploration,which provides reliable basis for formulating reasonable exploration and drainage plan and technical measures.
作者
刘超林
李军
郭英杰
LIU Chaolin;LI Jun;GUO Yingjie(Information Research Institute,State Aolministration of Work Sofety,Beijing 100029,China;Heilongjiang University of Science and Technology,Haerbin 150022,China;Inner Mongolia Pingzhuang Coal Group LTD,Chifeng 024076,China)
出处
《煤矿安全》
CAS
北大核心
2019年第4期85-89,共5页
Safety in Coal Mines
关键词
回风大巷
EH4
视电阻率
水害探测
积水区
return airway
EH4
apparent resistivity
water disaster detection
water area
